hey Bruce, check your roll. Their are plenty of folks on this site that have law enforcement experience as well as military backgrounds, including special operations service. There are a few folks, like me, that have both and have either trained in riot control or actually dealt with riots.
#1 I am not aware that the protesters threatened to kill anyone. If you have evidence of this, please provide.
#2 the laws vary by state and municipality, but generally speaking, if you shoot someone who has made entry into the physical structure of your domicile, you are unlikely to be charged with murder. If you shoot them on your lawn or exterior space of the house and they are not in the act of shooting at you or visibly brandishing a weapon, there is a fairly strong chance you are going be charged and tried for murder. MO castle doctrine is only clear on the use of lethal force to prevent harm to a person, not property.
#3 even if you agree with their right to do what they did, that guy and his wife made so many tactical errors That I don’t even know where to begin. Setting aside the wardrobe choices and poor muzzle and trigger control, how about not standing in the open and making a big fat target of yourself For starters.
they wanted to make a statement. They did and now they will deal with the fall out. I strongly suspect it will be very unpleasant for them and in totality much worse than if some protesters had torn up their front yard.
more broadly and in addition to the current social friction, my biggest concern is that images like this couple will galvanize the anti gun crowd and will lead to gun restrictions down the road when they regain political power.